
Weathering and the formation
of sedimentary rocks
• All materials are susceptible to weathering = interaction between
materials and weather!
• Synthetic and natural materials (concrete + minerals and rocks,
iron rods etc.)
• Minerals and rocks that form at high P and T (below or above
Earth’s Surface) are unstable on the Surface of the Earth.
• They change until they achieve equilibrium with the new
conditions.
• Weathering processes are broadly divided into mechanical and
chemical weathering.